B2 2020 Grissom

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Across
  1. 1. (C02) a gas produced from burning carbon. Occurs both naturally and can be produced by human activities
  2. 3. the envelope of gases surrounding the earth or another planet.
  3. 5. (CH4)an extremely effective absorber of radiation. Cows emit a lot of this greenhouse gas
  4. 7. the boundary between spheres
  5. 10. (o3) ozone layer in the troposphere formed by human interaction
  6. 11. (CFCs) are non-naturally formed and produced by humans as coolants. Destroy the ozone layer creating holes.
  7. 12. coldest temperatures in the atmosphere. Temperatures decrease with altitude. Meteorites burn up here.
  8. 14. produces the most artificial greenhouse gases
  9. 17. a natural process that heats earth. This process occurs naturally, however human interaction can affect it.
  10. 19. the pressure exerted by the weight of the atmosphere
Down
  1. 2. occurs when a planet's atmosphere contains greenhouse gas in an amount sufficient to block thermal radiation from the planet, preventing the planet from cooling and from having liquid water on its surface
  2. 3. gases in earth’s atmosphere
  3. 4. gases in earth’s atmosphere that trap heat
  4. 6. (N20) a greenhouse gas produced by combustion of fossil fuels
  5. 8. layer of the atmosphere where the weather and the water cycle occur. Highest pressure is at sea level. Temperatures decrease with altitude. Most dense layer of the atmosphere.
  6. 9. a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms. When these are burned, greenhouse gases are emitted
  7. 13. layer of the atmosphere where the ozone layer is located. The sun heats this layer. Holes can form in the ozone layer due to chlorofluorocarbons.
  8. 15. (H20)most abundant gas in the atmosphere
  9. 16. layer with the hottest temperatures in the atmosphere. Temperature rises with altitude. Gamma rays and x rays are absorbed here. Lowest pressure in the atmosphere. Aurora borealis occurs here.
  10. 18. (CO) a reactive greenhouse gas present in Earth's atmosphere at very low concentrations.